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Related Concept Videos

Generalization, Discrimination, and Extinction01:24

Generalization, Discrimination, and Extinction

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Generalization, discrimination, and extinction are key concepts in operant conditioning that influence how behaviors are learned and maintained.
Generalization occurs when a behavior reinforced in one context is performed in similar situations. For instance, a student who studies diligently for calculus and receives excellent grades might apply the same study habits to psychology and history, expecting similar results. Generalization shows how learning in one setting can influence behavior in...
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CNS Depressants: Alcohol and Nicotine01:27

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Ethanol, a clear colorless alcohol, has been consumed by humans for millennia, but its effects on the body are far from benign. At lower doses, it induces decreased inhibitions and loquaciousness, leading to its social appeal. However, it can cause severe consequences at higher doses, such as coma and respiratory depression, due to its zero-order elimination kinetics. Chronic ethanol abuse wreaks havoc on multiple organ systems, particularly the CNS and the liver. Abrupt cessation of ethanol...
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Principles of Classical Conditioning01:23

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Classical conditioning, as described by Ivan Pavlov, is a foundational concept in associative learning, where a neutral stimulus becomes capable of eliciting a conditioned response through association with an unconditioned stimulus. The process of acquisition, where this learning occurs, and the subsequent phenomena of contiguity, contingency, generalization, discrimination, extinction, and spontaneous recovery are crucial for a comprehensive understanding of classical conditioning.
During the...
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Instinctive Drift01:05

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Instinctive drift refers to the tendency of animals to revert to their innate behaviors despite repeated reinforcement. Breland and Breland demonstrated this concept in an experiment with a raccoon. The raccoon was trained to pick up two coins and place them in a container in exchange for food. Initially, the raccoon learned to associate the coins with food, making them a conditioned stimulus or a substitute for food. However, over time, the raccoon became less willing to put the coins into the...
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Classical Conditioning in Daily Life01:17

Classical Conditioning in Daily Life

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Classical conditioning, a fundamental principle of associative learning, explains various phenomena observed in daily life, such as fear development, the placebo effect, taste aversion, and drug habituation. These applications demonstrate the profound impact of associative learning on human behavior and physiological responses.
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Real-World Application of Classical Conditioning01:15

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Classical conditioning not only includes the initial pairing of stimuli but also extends to more complex forms, such as higher-order conditioning. Higher-order conditioning involves creating associations beyond the primary conditioned stimulus, resulting in a chain of conditioned responses.
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Related Experiment Video

Updated: Apr 6, 2026

A Procedure to Observe Context-induced Renewal of Pavlovian-conditioned Alcohol-seeking Behavior in Rats
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Extinction learning is slower, weaker and less context specific after alcohol.

James A Bisby1, John A King2, Valentina Sulpizio3

  • 1Institute of Cognitive Neuroscience, University College London, 17 Queen Square, London, WC1N 3AR, UK; Institute of Neurology, University College London, Queen Square, London, WC1 3BG, UK.

Neurobiology of Learning and Memory
|August 4, 2015
PubMed
Summary

Alcohol impairs the extinction of fear, not its acquisition, leading to persistent fear responses. This effect is linked to spatial memory deficits and may involve prefrontal and hippocampal functions.

Keywords:
AlcoholExtinctionFear memory

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Area of Science:

  • Neuroscience
  • Psychology
  • Pharmacology

Background:

  • Alcohol is often used to self-medicate anxiety and fear.
  • Understanding alcohol's impact on fear processing is crucial for mental health.
  • Virtual reality offers a controlled environment to study fear conditioning.

Purpose of the Study:

  • To investigate the effects of alcohol on fear acquisition and extinction.
  • To explore the role of spatial context in alcohol-related fear memory.
  • To examine the implications for individuals with anxiety disorders.

Main Methods:

  • Healthy volunteers received alcohol (0.4g/kg) or placebo.
  • Fear acquisition and extinction were conducted in a virtual courtyard.
  • Skin conductance responses measured conditioned fear; subsequent recall tested fear memory.

Main Results:

  • Alcohol impaired fear extinction, evidenced by persistent fear responses.
  • Extinction deficits correlated with impaired spatial memory across viewpoints.
  • Increased extinction trials partially mitigated alcohol's effect on learning.
  • Fear recall the next day showed generalized fear in the alcohol group.

Conclusions:

  • Alcohol selectively impairs fear extinction, not acquisition, suggesting prefrontal cortex involvement.
  • Reduced context-specificity in extinction implicates the hippocampus.
  • Findings highlight potential risks of alcohol use for anxiety management.